Check foe



J. HIRSCHMANN.

CHECK FOR-PICKER STICKS or LOOMS.

APPLICATION FILED APR. 17. 1919.

1 323,05 5 I Patentd Nov. 25, 1919.

e earner rerun.

JOSEPH HIR-SCHMANN, OF CHARLESTON, SOUTH CAROLINA, ASSIGNOB 6F ONE-HALF T0 CHARLES R. ALLEN, OF CHARLESTON, SOUTH CAROLINA.

CHECK FOR PICKER-STICKS 0F LOOIVIS.

Specification of Letters Patent.

Patented Nov. 25, 1919.

Application filednpril 17, 1919. Serial No. 290,709.

To all whom it may concern:

Be it known that I, JOSEPH HIRSOHMANN, a citizen of the United States, and a resident of Charleston, in the county-of Charleston and State of South Carolina, have invented certain new and useful Improvements in Checks for the Picker-Sticks of Looms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in checks for the picker sticks of looms, the object being to provide a simple and inexpensive device for checking the movement of the picker stick due to the impact of an incoming shuttle upon the picker.

When the shuttle strikes the picker the picker stick is thrown outward and such movement is assisted usually by a strap se-j cured to the lower end of the picker stick' Such " the nutQ-l.

and wound around a spring barrel.

outward movement must be checked, but the checking medium must be such that it will secured to the shoe and embraces the rocker not impede the movement of the picker stick in the opposite direction. My invention meets these requirements and can be applied to any of the looms having a rocker resting and rocking upon a shoe on the end of the rock shaft.

In the accompanying drawings; Figure 1 is a view in side elevation of a portion of a loom embodying my invention; Fig. 2 is a view in section through the rocker, shoe and checking device, and Fig. 3 is a view in perspective of the yoke detached.

6 is a portion of a loom frame in which is mounted the rock shaft 7 carrying a rocker shoe 8, and 9 is the picker stick having the rocker 10 secured to the lower end thereof in any well known manner. In many of the looms in use the lower end of the picker stick is secured to one end of a strap 11, the opposite end of which is wound on a spring drum 12 journaled in bearings carried at the underside of the shoe 8, which operates to swing the picker stick outwardly, and the latter is moved inwardly, or in a direction to throw the shuttle across the lay, by the lug-strap 13 connecting the stick with the pick-motion. The parts above referred to are used in looms employing a picker stick with a rocker foot, consequently may be of any of the well known constructions.

My invention comprises an inverted U- side members of the yoke It and through a hole in the shoe, the bolt being secured by a nut 17 which when tightened on the bolt, operates to clamp the frame solidly to the shoe. By loosening up the nut the yoke can be adjusted up or down as may be necessary and then secured by screwing the nut home.

Located within the yoke 14 and slotted at its ends to embrace the side members of the latter, is the follower 18 to which the stem 19 is secured. This stem passes through a hole in the closed upper end of the yoke, and is embraced between the top of the yoke and the follower 18 by the spring 20 which op- 'erates to yieldingly hold the follower in the wermost position. The upper end of the stem 19 is threaded for the attachment of As above explained the yoke is adjustably foot, the latter resting below the follower l8 and in a position to engage the same at each rocking movement of the picker stick 9. The spring 20 is not sufficiently strong to overcome the pull of the strap 11, by which the picker stick is thrown outwardly, but it is designed to absorb and check the movement at the end of its outward throw, without in. the least interfering with the eflective movements of the picker stick. It is simple in construction, is of few parts; can be readily applied to any rocker and be so adjusted to bring the picker stick to a stop without any lost motion or vibration.

It is evident that many slight changes might be resorted to in the relative arrangement of parts shown and described without departing from the spiritfand scope of my invention. Hence I would have it understood that I do not wish to confine myself to the exact construction and arrangement of parts shown and described but,

Having fully described my invention what I claim as new and desire to secure by Let ters-Patent, is

l. The combination of a shoe, a rocker thereon, a picker stick carried by the rocker, an inverted U-shaped yoke fixed with rela tion to the shoe and embracing the free end of the rocker and a yielding follower car,- ried by the yoke and forming a check for the rocker.

2. The combination of a shoe, a rocket thereon, a picker stick carried by the rocker, aninverted U-shaped yoke adjustably secured to the shoe and embracing the free end of the rocker, a movable follower carried by the yoke and above the free end of i cured to theshoe and straddling the free'end of thero'cker, a movable follower in the yoke, athreadedstem on the follower, theend of the-stem passing through the closed end of the yoke, a spring embracing the stem between the follower and closed end of the yoke and an adjusting nut on the free end of the stem. 7

4. The combination With a shoe, a rocker thereon and a picker stick carried by the rocker, of a yoke forming a-check for the rocker said. yoke being fixed w ith relation to the shoe and forming a yielding contact with the IOOkBl. r

In testimony whereofI have signed this specification in thepresence of two subscribing Witnesses; n n

JOSEPH HIBS CHMANN.

Witnesses z; y V G. '13; DOWNING,

S; G. NOTTINGHAM, 

